Marking-stamp.



PATENTED JAN. 3, 1905.

T. G. DURHAM.

MARKING STAMP.

APPLICATION FILED MAR. 16, .1904.

ml-mnu Patented January 3, 1905.

PATENT EETcE.

THOMAS C. DURHAM, OF NEIV YORK, N. Y.

MARKING-STAMP.

SPECIFICATION forming part of Letters Patent No. 778,957, dated January3, 1905.

Application filed March 16, 1904. Serial No. 198,432.

To all whom, it may concern.-

Be it known that I, THOMAS (J. DURHAM, a citizen of the United States,residing at New York, county of New York, and State of New York, haveinvented certain new and useful Improvements in Marking-Stamps, fullydescribed and represented in the following specification and theaccompanying drawings, forming a part of the same.

This invention relates to certain improvements in marking-stamps.

In certain kinds of work as, for instance, in dating a page composed ofa plurality of checksit is desirable to produce a plurality ofsuccessive impressions from the datingstamp. This work is now usuallyperformed by an ordinary impression marking-stamp, and of course theoperator is'compelled to aline his stamp with the date-line on thecheckfor each impression, the work being therefore comparatively slow.

The present invention has for its object to produce a marking-stamp ofthe rotary type, the type-carrier being arranged to make as manyrevolutions as it is desired to produce successive impressions on a pageand the stamp being provided with means for automatically returning thestamp to its original position when the plurality of impressions iscompleted.

With these and other objects in view the invention consists in certainconstructions and in certain'parts, improvements, and combinations, aswill be hereinafter described and then more particularly pointed out inthe claims hereunto appended.

In the drawings illustrating the preferred form of the construction,Figure 1 is a side elevation of a marking-stamp embodying the presentinvention. Fig. 2 is a front elevation of the construction shown inFig. 1. Fig. 3 is'a detail view illustrating one of the adjustments.Fig. 4: is a section on the line 4 I of Fig. 2. Fig. 5 is a section onthe line 5 5 of Fig. 2; and Fig. 6 is a face view of the date-line ofthe stamp and certain parts connected therewith, the driving-pinionbeing shown in section.

In the drawings, 1 indicates the frame, which may be of any ordinaryconstruction or configuration, but is preferably a bow-shaped casting,as shown. This frame has secured to it the usual operating-handle 2. Theframe serves to support the rotary type-carrier, which may also be ofany suitable construction and may be mounted in the frame in any desiredmanner. As shown, there is provided a shaft 3, which is preferablysquared near one end, as indicated at 4, and may have a milled head 5,by which it can be withdrawn from the frame to effect certainadjustments hereinafter referred to. The type-carrier in the particularconstruction shown consists of a holder or socket 6, in which the usualrubber dating-type 7 may be secured in any suitable manner, as byfriction. This carrier in the preferred construction is adj ustablyconnected to the carriershaft. The adjustable connection between thetype-carrier and the shaft may be of any desired form. As shown, theshaft is provided with a squared block 8, which is secured to the shaftin any desired manner, as by a set-screw 9. The socket or holder hasside wings 10, which embrace the block, one of these wings beingprovided with one or more slots 11. Set-screws 12 pass through theseslots and into perforations in the block. By loosening the set-screws 12it will be seen that the carrier may be adjusted so as to bring thetypeface nearer or farther from the axis of the shaft, as maybe desired.The shaft is further provided with a driver which operates to turn thecarrier by its friction against the surface to be printed upon. Whilethis driver may be of any desired construction, as shown it comprisestwo milled disks 13, which are mounted on the shaft, these disks havingperforations which are engaged by a pin 14, mounted on the ends of theblock 8, before referred to; The size of these disks 13.will depend uponthe distance between the impressions which are desired to be produced bythe stamp. Thus in dating checks, for which work this stamp isparticularly adapted, the circumference of the disk which forms thedriver will be equal to the distance between the datelines of successivechecks. After the num- The returning mechanism by which this resettingof the type-carrier is efi ected may be considerably varied inconstruction. As shown, there is provided a spring 15, one end of whichis secured to a small stud 16 and the other end of which is secured to apin 17, carried on an operating-gear 18, this gear being mounted upon astud 19, also supported in one of the legs of the frame. The frame alsocarries a stop-pin 20, which is in position to be engaged by a similarpin 21, mounted on the gear 18. The gear 18 is in mesh with a pinion 22,this pinion being a long pinion and being mounted on the squared end ofthe shaft before referred to. The teeth on the gear 18 will exceed innumber the teeth on the pinion, so that a number of revolutions of thepinion maybe made without causing more than a single revolution of thegear.

The inking mechanism may be of any desired character. In theconstruction shown it consists of a felt-covered roll 23, mounted on astud-shaft 2 1. This stud-shaft extends through a slot 25 in a boss 26,extending in from one of the legs of the frame, and has on its outer enda locking-plate 27,which is keyed to the shaft. This plate 27 isprovided with a slot 28, through which passes a set-screw 29, theset-screw engaging a threaded opening in one of the legs of the frame,as shown. It will be apparent that by loosening the setscrew 29 theink-roll may be adjusted toward and away from the type-carrier.

With the constructionsdescribed and with the disks 13 equaling incircumferential measurement the distance between the date-lines ofsuccessive checks (assuming that the marker is to be used for instance,in dating a checkbook) it will be seen that the marker may be rolledover a page of checks and each one successively dated, the number ofchecks depending upon the relation of the pinion 22 to the gear 18. Itwill be desirable in constructing the stamp to so arrange the relationof the teeth of the pinion to those of the gear that the greatest numberof revolutions of the marker which it is expected to ever give it may beprovided for. When the page of checks is dated, the marker is raisedfrom the paper and the returning-spring immediately returns thetype-carrier. Should it be desired to adjust the marker for checkshaving different distances between their date-lines, this can be readilydone by removing the shaft 8 and changing the disks 13 for disks of theproper size. The type-carrier by loosening the screws 12 may be adjustednearer or farther from the axis of its shaft, as desired, to correspondwith the change in the disk, and at the same time the inking-roller maybe adjusted in'proper relation so that the type on the carrier willcontact with it in its revolution.

Changes and variations may be made in the construction by which theinvention is carried into effect. The invention is, therefore, not to belimited to the specific form of devices hereinbefore described.

l/Vhat is claimed is 1. In a marking-stamp, the combination with arotary type-carrier, of friction driving means therefor, said meansbeing adapted to contact with the article to be marked, and meanswhereby the type-carrier may be reset in its orginal position after ithas been given a plurality of revolutions, substantially as described.

2. In a marking-stamp, the combination with a rotary type-carrier, offriction driving means therefor, said means being adapted to contactwith the article to be marked, a returning mechanism for the carrier,and operating connections between the carrier and re turning mechanism,said connections permitting the carrier to make a plurality ofrevolutions before being reset by the returning mechanism, substantiallyas described.

3. In a marking-stamp, the combination with a frame, of a shaft mountedtherein, a type-carrier mounted on the shaft, a friction driver mountedon the shaft, a returningspring, and red ucing-gearing between the carrier-shaft and spring, whereby the type-carrier is permitted to make aplurality of revolutions before the spring operates to return thecarrier to its original position, substantially as described.

4:. In a marking-stamp, the combination with a frame, of a shaft, arotary type-carrier mounted therein, a returning-spring, and reducing-gearing between the type-carrier shaft and the returning-spring,whereby the carrier-shaft is permitted to make a plurality ofrevolutions before the spring operates to re turn the carrier to itsoriginal position, and a stop device for limiting the return action ofthe spring, substantially as described.

5. In a marking-stamp, the combination with a shaft, of a type-carrieradjustably mounted on the shaft, a friction-driver removably mounted onthe shaft, a returning-spring, reducing-gearing between the .shaft andthe spring, said gearing permitting a plurality of revolutions for thetype-carrier before the spring operates to return the carrier to itsoriginal position, and an inking-roller adjustably mounted in the frame,substantially as described.

6. In a marking-stamp, the combination with a frame, of a shaft mountedtherein, a type-carrier comprising a type-holder and side plates,adjustable connections whereby the side plates are secured to the shaft,a pinion IIS on the shaft, a gear driven by the pinion and having thenumber of its teeth exceeding the number of those on the pinion, areturningspring having one end connected to the gear, the other end ofthe spring being fast to the frame, whereby the pinion and carrier-shaftmay make a plurality of revolutions to one of the gear, a stop device, astud adjustably mounted in the frame, an inking roller mounted on thestud, and means for locking the stud in any of its adjusted positions,substantially as described.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing Witnesses.

THOMAS C. DURHAM. Witnesses:

WM. R. J OURNEAY, Jr., H. RUPPERT.

